Sigersen

I’m at 581 volt in coldest conditions ever recorded in this area, and inverter mppt supports up to 650, so I guess voltage is alright

Thank you for your answer. it sounds like I should be fine, even with slightly more than 30%. plenty of volts left before hitting max. i have 20A bels automatic fuses on each string, to protect against short circuits on the parallel strings.

It’s a 12 kW deye. Link in my earlier post

No worries! just glad it was not right, because the panels are already on my roof 😂

Mppt Voltage range is up to 650 volt, and 12 panels are only 508 plus temperature coefficient (581 volt @ -32C) what does your calculations say?

Jinko tiger neo 470 3 strings 12 panels each 2 of the strings parallel on one MPPT ant the 3rd string on the other MPPT. Both Isc and Voc values are okay under all conditions, So it's only a matter of dc/ac ratio of the inverter that's a litle too high. 1,41 vs 1,3 STC-like conditions are relatively rare here in Denmark Panels pointing 226 (46 degrees from optimum) and tilt is 20 degrees (18 degrees from optimum) STC: Voc 42,38V Isc 14,15A Vmp 35,05V Voc coefficient -0.25%/℃ Panels 470 W: JKM460-480N-60HL4-(V)-F1-EN (IEC 2016).ai (elitag.dk) Inverter 12 kW: 【B】30240303000040 服务指南 储能三相-SUN-(8-12)K-SG04LP3 Deye 彩印 157g铜版纸 英文单页 (elitag.dk) Thank you

Hi Sc00bs, Hope you´re still here! I'm awaiting approval of my account, but i can't wait to ask about the above statement. I am (very) close to finishing my pv setup, using a Deye 12 kW hybrid inverter. I'll over panel a bit more than recommended with a total of 16920 Wp all facing the same direction. this is around 41% more than the 12 kW, but only 8,5% more than the max pv input of 15600 W Do you think that the inverter can handle this? you seem to actually know the working principles of the mppt's Some say that it's not a problem, and others that it will kill the inverter Please note that i am 100% sure that Voc and Isc is okay, also in coldest conditions. The only thing that's over limit is the wattage Do your whole 12740 watt array point in the same direction? Thanks in advance Anders